Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 28 for “"fast simulation"”.
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Fast simulation methods for soft matter hydrodynamics
… of methods to perform large scale dynamic simulations of hydrodynamically interacting colloidal particles undergoing Brownian motion. Approximations to the hydrodynamic interactions between particles are built from the periodic fundamental solution for flow at zero Reynolds number and are …
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Fast simulation of stochastic biochemical reaction networks on cytomorphic chips
The large-scale simulation of biochemical reaction networks in cells is important in pathway discovery in medicine, in analyzing complex cell function in systems biology, and in the design of synthetic biological circuits in living cells. However, cells can undergo many trillions of reactions over …
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Microwave Lens Designs: Optimization, Fast Simulation Algorithms, and 360-Degree Scanning Techniques
… minimized phase errors, accurate and efficient simulation algorithms, and 360-degree scanning range extension. First, a minimum-phase-error, non-focal lens design method is proposed. It does not require a specific number of foci along the beam contour; however, minimum phase errors for all beam …
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Fast simulation of E1, B1 and Specific Absorption Rate for 7T MRI with the use of graphical processors
… and some of this functionality is applicable for faster numerical SAR simulation compared to general CPUs. In this study, we present the use of Compute Unified Device Architecture (CUDA) enabled graphics cards in Finite Difference Time Domain (FDTD) simulations for SAR computation. We show that …
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ATLAS Level-1 Jet Trigger Rates and study of the ATLAS discovery potential of the neutral MSSM Higgs bosons in b-jet decay channels
… in the ATLAS Level-1 (LVL1) Calorimeter Trigger fast simulation package which, based on an average detector geometry, simulates the complete chain of the LVL1 calorimeter trigger system. In addition, pile-up effects due to multiple primary interactions are implemented taking into account the …
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Using importance sampling to simulate queuing networks with heavy-tailed service time distributions
… queue length distributions using direct simulation is generally computationally prohibitive. We develop a fast simulation method by using an importance sampling approach based on a change of measure of the service time in an M/G/1 queue. In particular, we present an algorithm for …
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System identification for black-box macro-modeling with Loewner matrix framework
… circuitry, algorithms that enable accurate and fast simulation are desirable. Vector fitting has been used in the industry for years for black-box macromodeling. Loewner matrix is newly introduced and appears to be a promisingalgorithm by its capability of handling systems with many ports. This …
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Graphite : a parallel distributed simulator for multicores
… across multiple machines. Graphite allows fast simulation of multicore architectures by leveraging computational resources from multiple machines and making efficient use of the parallelism available in the host platforms. This thesis describes in detail the design and implementation of the …
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Body scan processing, generative design, and multi-objective evaluation of sports bras : a new design strategy
… that we have developed for body scan analysis, fast simulation, design generation, and evaluation. Using these tools together enables the exploration of hundreds, or thousands, of designs -- each one having been evaluated on a variety of metrics. Using this research, designers can discover …
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Machine Learning for Physics: from Symbolic Regression to Quantum Simulation
… compared to existing techniques in physics: 1) fast simulation, and 2) discovering new physics. To illustrate the potential of ML to advance physics by solving these problems, we develop a physics-optimized ML model for each of the problems identified above, respectively: 1) Q-Flow, a technique …
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Impact Analysis and Design Development for Air-Dropped Antarctic Seismo-Geodetic Ice Penetrator
… into glacial firn is detailed, with a focus on fast simulation run-times for design exploration. Designs of snow spikes and a rigid antenna mast are detailed, analyzed and tested. Results from a full-scale prototype hardware test in Juneau, Alaska are discussed.
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Simulation and analysis of a time hopping spread spectrum communication system
… direct sequence systems. Through the use of a fast simulation technique, it will be shown that in certain situations, the Gaussian approximation fails to accurately predict the performance. A numerical analysis which uses characteristic functions is developed and shown to correctly predict the …
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Wind farm simulation modelling and control
… has been developed which offers sufficiently fast simulation for iterative controller design task, and contains a suitable wind-field model that provides a suitable representation of the wind-field and wake propagation through the wind farm. The wind farm controller design with the objectives …
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Accelerating RTL Simulation Through Fine-grained Task Dataflow and Selective Execution
Fast simulation of digital circuits is crucial to build modern chips. Current processors and SoCs integrate hundreds of complex components, including cores, accelerators, and memory hierarchies. Simulating these systems is necessary to verify correctness and explore the design space. Simulation can …
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Towards Real-Time Simulation Of Hyperelastic Materials
We propose a new method for physics-based simulation supporting many different types of hyperelastic materials from mass-spring systems to three-dimensional finite element models, pushing the performance of the simulation towards real-time. Fast simulation methods such as Position Based Dynamics …
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An average modeling approach of hybrid power systems for use in mobile refrigeration applications
… and efficiency over a long time interval with fast simulation. Battery simulation is improved from previous literature to provide a more accurate and robust solution. The model, interfaced with the thermal system, is verified by simulation studies in MATLAB/Simulink. A detailed model including …
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Task Scheduling Techniques to Accelerate RTL Simulation
Fast simulation of digital circuits is crucial to build modern chips. Slow simulation lengthens chip design time and makes bugs more frequent. While simulation can happen at different levels of abstraction, Register-Transfer-Level (RTL) simulation is the usual bottleneck in chip design, as it is …
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AI-driven smart cities: Digital twin simulation, V2X communication, and EV infrastructure optimization
… real-time data analytics, machine learning, and simulation technologies to enhance urban transportation systems. The first component focuses on Digital Twin-driven traffic simulation, which enables scenario testing, predictive modeling, and real-time decision-making. A key contribution is the …
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ANALYSIS AND SIMULATION OF THE PNEUMATIC BRAKING SYSTEM OF FREIGHT TRAINS
… combinations for providing an accurate and fast simulation.</p><p>Mathematical models for the ABD/ABDW subvalves are developed and incorporated with the air brake system model. The new mathematical models for the ABD/ABDW are capable of describing the dynamic behaviour of these valves for …
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A comparative study of surrogate musculoskeletal models using various neural network configurations
… methods especially during real-time movement simulations. An alternative surrogate modeling method is the use of artificial neural networks in place of finite-element models. The ultimate objective of this research is to predict tissue-level stresses experienced by the cartilage and ligaments …
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